BFI Screening on December 15, 2010:
There will be a showing of the first episode of Upstairs, Downstairs (60 minutes) followed by a panel discussion and Q&A with members of the cast and production team. Book your seat
Synopsis found at British Film Institute:
"The return of the legendary TV series Upstairs Downstairs takes viewers, old and new, back to the lavish world of 165 Eaton Place in Belgravia, London. A new set of occupants move into the iconic address, as storm clouds gather in Europe. The lives of the wealthy Holland family and their servants will never be the same again."
I was surprised to read that Upstairs, Downstairs will only be 3 episodes of 60 minutes (December 2010 in U.K., April 2011 in U.S.) but an article in December's Marie Claire magazine mentions that they are planning to make it into a full series next year.